Furnace-front



I. REID.

FUIiNACE FRONT. APPLICATION FILED 056.16, 1919.

1,350,037. n dAug.17,1920.

\\\\\ n t n I an X a E II e Aitor ney JOHN REID, 0F HEW YORK, N. Y.

r'unnacn-monr.

Original application filed April 19, 1919, Serial No. 291,362.

Specification of Letters Patent.

Patented Aug. 1?, 1920. Divided and this application filed December 16, 1919. Serial No. 345,396.

To all whom it may concern:

Be it known that I, JOHN REID, a subject of the King of Great Britain, and residing at 30 Church street, in the city of New York, in the State of New York, in the United States of Ameriea, have invented a new and useful F urnace-F ront, of which the followin is the specification.

The invention relates to furnace fronts as described in the present specification and illustrated in the accompanying drawings that form part of the same.

The invention consists essentially of the novel construction and arrangement of the air deflecting member leading into the flame, whereby the air entering-between front and back plates to the furnace flows between deflecting plates in particular arrangement and strikes the fire at an angle to the spread of the flame.

The objects of the invention are to improve the combustible properties of an oil burning furnace through the means employed in feeding the'air; to utilize all the air supply in a forced draft system through the furnace front to the very best advantage; to devise, in furnace front construction, parts that are readily removable and replaceable, and at the same time cheap to produce; and generally, to provlde a furnace front in parts that will generally. lend themselves to standardization, so that transport, repairs and replacements are much facilitated.

In the drawings, Figure 1 is an elevation of the back plate, showing the intermediate walls in section and the oil burning equipment.

Fig. 2 is a vertical complete front.

Fig. 3 is a perspective view of the air cone showing the deflecting plates.

ike numerals of reference indicate corresponding parts in each figure.

This application is confined to the particular construction of the air deflecting member with special reference to this form of furnace front, and it has been divided from a pending a plication for a furnace front filed under erial Number'291,362 on the 19th day ofApril, 1919, and this description will more specifically point out the construction of the parts already disclosed in the said application pending, either in sectional View of the the specification or in the drawings accompanying the specification.

eferring to the drawings, the back plate 1 and the front plate 2 form an air pocket for the passage of the air to the fuel openings intermediate of the height of said plates. The bafile Wall 3 is so that by making certain changes, the front can be converted for coal urning purposes.

The flare 6 is an arc-shaped wall extending around the lower portion of the front from plate to plate and forming a bafiie for the air flowing in around the ends of the arched wall 3.

The cone shell 7 forms an air deflector and is flanged at 8 and fitted in the fuel opening in the front plate 2 within the closure plate 9. The shell 7 terminates part way to the back plate 1 and at its inner end forms a circular air opening 10.

The guide plates 11 are mounted on the shell 7 and at their outer edges 12 extend in a straight horizontal line toward the back plate 1 and are cut obliquely at 13 inwardly to the back plate and from their extremities 14 extend in straight horizontal lines 15 to the terminus of the shell 7, each plate 11 being preferably of curved formation from the inner edge to the outer edge, thereby providing an annular succession of deflecting plates on the cone shell 7.

e inner cone 16 is in plate form and is adjustably mounted onthe oil pipe 17 within the shell 7 and is operated by rods projecting through the closure plate, and directs the air in the direction of the Venturi tube 18 secured to the back plate 1, which surrounds the burner nozzle 19, so that the air flowing in through the air passages is concentrated by the said Venturi tube and strikes the spreading flame from the burner nozzle at an angle.

The closure plate 9 forms a support for the oil pipe 17 and at the same time completely closes the opening in the front plate.

In the operation of this invention, the oil is fed through the oil pipe 17 as'customar and vaporizes at the burner 19, from whic when ignited, the flame spreads outwardly,

extensively in marine engineering flow and strike'the fla're 6, which deflects the air, so that it is well distributed through- The air in the forced draft system,

' out the space between the front and back as in a pocket, and the guide lates the specific distribution of t e air feed to the oil burner, for between the plates and is plates, 11 insure in respect to the the air passes in deflected so as to reach the flame in a multiout departing from the tion,

ing, an oil pipe' having a plicity of streams from all sides of the flame.

It will thus be seen that for the forced draft system, known in the trade as the Scotch type of boiler, the deflecting air shell and guides are very efiicient, and while the form shown is peculiarly well fitted for the purpose, it can be changed considerably withspirit of the invenas the scope of the latter is only limited by the claims for novelty following.

What I claim is Y a 1. In a furnace front, a front plate and a back plate forming an air pocket in a forced draft furnace system, a closure plate secured to the front plate for the fuel openburner nozzle'and supported by said closure plate, a cone shell forming an air deflector and introduced between said front and back plates in the fuel openings, and guide plates mounted on said shell and extendin outwardly in a substan-' irection from the larger tially horizontal and terminating adjacent and of the shell to the back plate.

2. In a furnace front, a front plate and.

on said shell and forming paths leadin to said burner and extending beyond the s ell to the back plate.

v 3. In a furnace front, a front plate and a back plate forming an air pocket therebetween in a forced draft furnace system, an oil feed pipe, a burner nozzle at the inner end of said pipe, a closure plate supporting said oil feedpipe and closing the opening in the front plate, an air deflector having a front flange and formed in substantially cone shell shape and extending part way to the back plate, a plurality of curved guide plates mounted on said deflector and rojecting therebeyond and an inner cone eflector adjustably mounted on said oil ipe and movable within and beyond sai .cone shell deflector.

Signed at the city of New York,in the State of New York, in the United Statesof America,.this 10th day of Dec., 1919.

JOHN REID. 

